Finding the Fourth Proportional to 9,291.42, 12,822.12 and 5,099.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,291.42 : 12,822.12 = 5,099.58 : x
2. Step 2: Convert to fraction form
   9,291.42/12,822.12 = 5,099.58/x
3. Step 3: Cross multiply
   9,291.42x = 12,822.12 × 5,099.58
4. Step 4: Simplify right side
   9,291.42x = 65,387,426.71
5. Step 5: Solve for x
   x = 65,387,426.71/9,291.42
6. Step 6: Final answer
   x = 7,037.40